Please note that we are experiencing this issue now. Upon exiting level 2 in a game of 3 players, the game hangs on "Loading".
Exiting and resuming from savegame causes us to run into this error as referenced in another thread:
http://hammerwatch.com/forum/index.php?topic=1642.0Host loads and is put into game immediately, and other players are stuck in "empty" lobby.
ConfigurationsHost: Windows 8
Clients: Windows 8, Windows 7 Ultimate
Also tried:
Host: Windows 8
Clients: Windows 8, Ubuntu 12.10
To note: We are using Hamachi, because we cannot connect to the host without it. It's weird, because this worked perfectly during the public beta...